Find the perimeter of the quadrant whose radius is 21cm

Question

asked Mar 22, 2021 128k views

1 Answer

BHC · Answer 1 · 2021-03-27T10:18:30+0000

Answer:

75 cm

Explanation:

∅=90° , r = 21 cm

Arc length= (2πr∅)/360

=(2π×21×90)/360

=33 cm

Perimeter= arc length + 2(radius)

=33+2(21)

=33 + 42

= 75 cm